GR8 and SG1 compounds for eyewear: two new solutions for the grinding of acetate and injected plastic
In the context of the tumbling process of cellulose acetate and injected plastic eyewear, the first step, defined grinding, has a basic importance in order to guarantee a perfect finishing of frames, temples and earpieces. It is indeed necessary to remove scratches derived from the previous treatments, like milling or mould deburring, avoiding to damage the surface and ensuring meanwhile a more or less marked rounding of the profile based on the several models.
